No TV, so my experience of the last couple of decades is minimal. But I rented some DVDs of series at the local video store:
The Office. WTF is that, turn it off. Sorry, it must exist at an entirely different plane when watched weekly with commercial interruptions.
Corner Gas. This is great, I go around humming the theme song. Does anybody outside Canada get this series, or get this humor?
Six Feet Under. OK here's my problem. The video store doesn't have Disk 3 of Year 1 and I'm detemined to watch it sequentially... I'm in serious withdrawl, I'm starting to really CARE what happens to these people. Gheeze. Can someone recommend a therapist?
Old faves:
Moonlighting, sometimes great sometimes annoying as heck. Smirk some more for the camera, Bruce.
M*A*S*H, yup
This Old House with Bob Vilas
St. Elsewhere for a period (weird to see Dr. Victor Erlich as the first generation love interest in Six Feet Under though)
Hill St. Blues
The British series that Three's Company was ripped off from
Fawlty Towers
Night Court
Remington Steele
Then there are the shows I watched just for the female actors (this was in my impressionable youth of course) Cybill Shepherd, Lindsay Wagner, Heather Locklear (Dallas era), Suzanne Pleshette (Bob Newhart), Marcia Strassman (Welcome Back Kotter -- these last two irresistably smart and sarcastic), Ellen Foley on Night Court's first season (and who also sang the duet with Meatloaf on Paradise by the Dashboard Light), and ... I blush to admit ... Lauren Tewes from the Love Boat

and Jean Bruce Scott, who showed up on St. Elsewhere (Bobbi Sloan, love interest of Erlich - gee, he keeps popping up) and on Magnum PI ... this has something to do with a minor period of infatuation with blonde, wedge-stye hairdos.
Now, about that therapist...